activity
20122020
most citedDynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity

1.1k citations · 1.4k across the 7 of their papers we have counts for

collaborators

7 papers

physics.optics2020★ 33 cited

Encircling exceptional points as a non-Hermitian extension of rapid adiabatic passage

Juraj Feilhauer, Alexander Schumer, Jörg Doppler +5

The efficient transfer of excitations between different levels of a quantum system is a task with many applications. Among the various protocols to carry out such a state transfer…

physics.optics2016★ 1.1k cited

Dynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity

Jörg Doppler, Alexei A. Mailybaev, Julian Böhm +7

Physical systems with loss or gain feature resonant modes that are decaying or growing exponentially with time. Whenever two such modes coalesce both in their resonant frequency an…

quant-ph2014★ 214 cited

General description of quasi-adiabatic dynamical phenomena near exceptional points

Thomas J. Milburn, Jörg Doppler, Catherine A. Holmes +3

The appearance of so-called exceptional points in the complex spectra of non-Hermitian systems is often associated with phenomena that contradict our physical intuition. One exampl…

cond-mat.mtrl-sci2014★ 37 cited

Hybridization of Graphene and a Ag Monolayer Supported on Re(0001)

M. Papagno, P. Moras, P. M. Sheverdyaeva +5

We have investigated the electronic structure of graphene supported on Re(0001) before and after the intercalation of one monolayer of Ag by means of angle-resolved photoemission s…

cond-mat.dis-nn2013★ 5 cited

Reflection resonances in surface-disordered waveguides: strong higher-order effects of the disorder

J. Doppler, J. A. Méndez-Bermúdez, J. Feist +5

We study coherent wave scattering through waveguides with a step-like surface disorder and find distinct enhancements in the reflection coefficients at well-defined resonance value…

cond-mat.mtrl-sci2013★ 60 cited

An Artificially Lattice Mismatched Graphene/Metal Interface: Graphene/Ni/Ir(111)

D. Pacilé, P. Leicht, M. Papagno +11

We report the structural and electronic properties of an artificial graphene/Ni(111) system obtained by the intercalation of a monoatomic layer of Ni in graphene/Ir(111). Upon inte…

cond-mat.mes-hall2012★ 14 cited

Surface scattering and band gaps in rough waveguides and nanowires

O. Dietz, H. -J. Stöckmann, U. Kuhl +5

The boundaries of waveguides and nanowires have drastic influence on their coherent scattering properties. Designing the boundary profile is thus a promising approach for transmiss…